Technical Description

Technical Description >

The aim of the current project is to bridge nano-technology with construction technology in order to produce nano-modified cement based materials and incorporate carbon-based inclusions in Portland cement, in order to:

  • Enhance mechanical performance
  • Reduce weight
  • Offer multi-functionalities and smartness

The proposed work is divided in 4 major areas:

  • Cement-based Materials - Modification - Quality Control (WP1)
  • Performance of modified materials (WP2-6)
  • Impact of nano-modification on the multi-functionality, smartness and environmental response of lab scale and structural components (WP7-9)
  • Cost effectiveness (WP10-11)

The first area (WP1) has two main objectives: (a) develop a methodology based on appropriate selection of materials and processes for optimal modification of cement-based materials using carbon nanotubes (CNTs) and carbon nanofibers (CNFs) of various aspect ratios and volume fractions, and (b) use of traditional as well as develop innovative methodologies for the quality control of the produced new materials. The second area of the project (WP2-6) aims in assessing the performance of the modified materials in order to gain a basic understanding of the interaction mechanisms between the nano-reinforcements and the cement matrix and the impact of the carbon-based nano-inclusions on the overall properties of the cementitious nanocomposites. The third area of the project (WP7-9) investigates the impact of nano-modification on the multi-functionality, smartness and environmental response of lab scale and structural components. Finally, the forth area of the project (WP10-11) includes the pilot production of CNTs/cement composition at industrial scale and cost effectiveness study of the final product.

Partner’s Roles >

The specific role of each partner in the program is as follows:


Milestones >

The key milestones of the project are:

No. Title WP Delivery (Μ)
1 Up to 6 optimal compositions of CNT/CNF
nano-modified paste/mortar
1,3 12
2 Nanocomposites with improved mechanical
properties
2,4 12
3 Model for thermal and electrical behavior 5-6 15
4 Optimized nanocomposites with improved
sensing capabilities for real time monitoring
of structural components
7-9 17
5 Environmentally durable and cost effective
nanomodified cement based composites
8-11 21
Benefits >

Benefits for the national economy, society, environment

The proposed work aims at developing innovative products of high added value which are based on modify-ing conventional concrete with carbon-based nano-inclusions. These new products are expected to exhibit improved manufacturing process and quality control, while possessing multi-functional properties that do not occur in conventional concrete, such as enhanced mechanical and electrical performance.

The successful implementation of this project will provide the Greek construction industry top notch solu-tions (operational, environmental and technological) and increase its competitiveness in the European and International markets. The education and academia will have access to new applications using high-end technologies. Key benefits are:

  • Life extension of structural components. This will make a significant impact by reducing waste, raw material consumption and power consumption in the service life of constructions.
  • Reduction of CO2 emissions due to improved mechanical properties (less weight, less material re-quired for equal strength) and due to multi-functionality (less additional functional elements required since functionalities will be integrated).
  • Improvement of society safety by the development of improved damage monitoring capabilities and targeted intervention.
  • In addition, shorting of maintenance periods will allow better use of constructions like through maximization of their operating capacity.
  • Simulation tools of novel materials which can be applied in areas other than construction (aerospace, automotive, etc.).
  • Technology transfer of the results and know-how to biomedical applications (i.e. cement-based nano-modified implants).
  • Know-how for the development and set-up of novel sensing tools to satisfy the needs of a wide vari-ety of in-situ measurements for real-time monitoring.

The aforementioned range of drivers for environmentally sustainable manufacturing will affect any stage of the process, from cutting cost by saving raw material and energy to unnecessary short material life cycles and regulations set by authorities. Apart from the technology transfer issues, the high social value of the project is also underpinned by its multidimensional contribution to the sustained requirement for anthropo-centric technological activity. Current industrial practices suffer from inefficient use of resources mainly due to unreliable applications, uncontrolled harmful side effects and unnecessary short material life cycles. The durable welding of research capabilities of the project’s partners will advance knowledge towards the intro-duction of “smart” materials and processes inducing not only considerable savings in energy and overall costs, but also significant improvement in the flexibility and safety of the operational scheme (elimination of hazardous incidents) with a high impact both on environmental (minimization of wastes, minimization of use of natural resources) and working conditions